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77-GHz Sensor Measures Speed

Dec. 9, 2010

Model SRF-77120910-01 is a low-cost 77-GHz sensor developed by Ducommun Technologies for Doppler speed measurements. The sensor includes a high-performance circularly polarized horn antenna, linear-to-circular-polarization converter, and transmit/receiver (T/R) diplexer. The sensor also includes a balanced mixer and Gunn oscillator. It provides +10-dBm output power at 77 GHz with a 12-deg. 3-dB beamwidth and 9-dB conversion loss. It is available with different beamwidths, with a dual-channel in-phase (I) and quadrature (Q) output, and in frequency-modulated-continuous-wave (FMCW) versions.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.